Crystallization behavior of Dy3+-doped selenide glasses

Tang, Zhuoqi; Neate, Nigel; Furniss, David; Sujecki, S.; Benson, T.M.; Seddon, Angela B.

doi:10.1016/j.jnoncrysol.2010.11.065

Cited by 40 publications

(90 citation statements)

References 18 publications

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“…The doping level is equal to 1500 ppmw. (For this doping level fabricated chalcogenide glass bulk samples show no signs of crystallization after meltcooling and annealing [13].) The laser action at 4.6 µm in Dy 3+ doped glass can be obtained between the H 11/2 and H 13/2 levels by pumping directly the level H 11/2 by a 1.71 µm pump.…”

Section: Resultsmentioning

confidence: 93%

“…The fiber structure assumed is a doubleclad one with a single mode (for the signal and idler wavelengths), core with a radius of 5.5 µm and a multimode clad with a radius of 30 µm for the pump wavelength. The feasibility of fabrication of single mode chalcogenide glass fibers was demonstrated in [9][10][11][12][13][14]. The pump confinement factor was calculated under the assumption that the pump power is uniformly distributed in the fiber cladding.…”

Section: Resultsmentioning

confidence: 99%

“…One of the candidates to become a host material for the midinfrared fiber lasers is the chalcogenide glass. Suitable chalcogenide glasses are chemically and mechanically durable, can be drawn into a low loss fiber and doped with lanthanides [4][5][6][7][8][9][10][11][12][13][14]. The feasibility of the mid-infrared fiber laser realization using a chalcogenide glass fiber doped with dysprosium was first demonstrated in [15] and further explored in [16].…”

Section: Introductionmentioning

confidence: 99%

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Study of mid-infrared laser action in chalcogenide rare earth doped glass with Dy^3+, Pr^3+and Tb^3+

Sójka¹,

Tang²,

Zhu³

et al. 2012

Opt. Mater. Express

104

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We present a study of chalcogenide glass fiber lasers doped with Dy 3+ , Pr 3+ or Tb 3+ that would operate in the mid-infrared wavelength range. A set of chalcogenide glass samples doped with different concentrations of rare earth ions is fabricated. The modeling parameters are directly extracted from FTIR absorption measurements of the fabricated bulk glass samples using Judd-Ofelt, Füchtbauer-Ladenburg theory and McCumber theory. The modeling results show that, for all the dopants considered, an efficient mid-infrared laser action is possible if optical losses are kept at the level of 1dB/m or below.

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Study of mid-infrared laser action in chalcogenide rare earth doped glass with Dy^3+, Pr^3+and Tb^3+

Sójka¹,

Tang²,

Zhu³

et al. 2012

Opt. Mater. Express

104

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“…XRD patterns (Fig.4) show amorphicity of: the Pr 3+ / In core-glass rod (see section 2.1.2, Fig.1), the undoped cladding-tube (section 2.2(a), Fig.1(ii)) and the Pr 3+ /In unclad-cane (section 2.2(b), Fig.1(b)), although the XRD detection threshold is 2-5 vol.% of crystals [34]). Fig.1(i)) was 4.9 ± 0.3 dB/m at 6.84 µm, across 1-9 µm.…”

Section: X-ray Diffraction (Xrd) Crystallization Study and Optical Lomentioning

confidence: 99%

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

et al. 2017

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Selenide-chalcogenide glass, small-core, step-index fiber (SIF), core-doped with Pr 3+ : 9.51 x 10 24 ions m -3 (500 ppmw) is fabricated for the first time with indium to help solubilize Pr 3+ . Core diameters of 20 or 40 µm are confirmed using scanning electron microscopy and near-field imaging; fibre numerical aperture is ~0.4. Optical loss is ≥4.9 dB m -1 across the 3-9m mid-infrared (MIR) spectral range. On pumping at 1.55 m or 2.013 m, the SIFs give broad MIR emission across 3.5-6 m assigned to 3 H6 3 H5 and 3 H5 3 H4. The Pr 3+ emission-lifetime at 4.7 m decreases from bulk-glass (10.1 ±0.3 ms), to intermediately processed fiber (8.10 ±0.5 ms) to SIF (7.1 ±0.5 ms) induced by the processing. On end-pumping SIFs at 2.013 µm, the output pump-power and emission intensity at 4.7 µm became sub-linear and super-linear, respectively, suggesting MIR excited-state saturation is occurring.

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“…The assumed dopant concentration N is assumed to be equal to 0.93x10 25 /m 3 . A series of experimental studies has demonstrated that such an ion concentration can be achieved in selenide chalcogenide glass without triggering any deleterious effects [4][5][6][7][8][9][10][11]. N1, N2 and N3 stand for the populations of levels 1, 2 and 3, respectively (Fig.1, Fig.2 and Fig.3) while p is the pump photon flux.…”

Section: Model Descriptionmentioning

confidence: 99%

Modelling of multimode selenide-chalcogenide glass fibre based mir spontaneous emission sources

Sujecki

Sójka

Bereś-Pawlik

et al. 2017

2017 19th International Conference on Transparent Optical Networks (ICTON)

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A note on versions:The version presented here may differ from the published version or from the version of record. If you wish to cite this item you are advised to consult the publisher's version. Please see the repository url above for details on accessing the published version and note that access may require a subscription. ABSTRACTChalcogenide glass fibres have been demonstrated as a suitable medium for the realisation of spontaneous emission sources for mid-infrared photonics applications with a particular emphasis on sensor technology. Such sources give a viable alternative to other solutions due to their potentially low cost, high reliability and robustness when pumped using commercially available semiconductor lasers. We present a comprehensive analysis of the properties of selenide-chalcogenide glass fibres applied as spontaneous emission sources. We extract the modelling parameters from measurements using in house fabricated bulk glass and fibre samples. We apply the well-established rate equations approach to determine the level populations, the distribution of the photon intensity within the fibre and the output power levels. We compare the modelling results with experiment.

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Crystallization behavior of Dy3+-doped selenide glasses

Cited by 40 publications

References 18 publications

Study of mid-infrared laser action in chalcogenide rare earth doped glass with Dy^3+, Pr^3+and Tb^3+

Study of mid-infrared laser action in chalcogenide rare earth doped glass with Dy^3+, Pr^3+and Tb^3+

Promising emission behavior in Pr 3+ /In selenide-chalcogenide-glass small-core step index fiber (SIF)

Modelling of multimode selenide-chalcogenide glass fibre based mir spontaneous emission sources

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